Nike ACG Unstructured Fly CapBlack Reflective Silver Hat Fly caps all have a snug and athletic fit with a low depth. The smooth and stretchy fabric has a soft, comfortable feel. Mesh side panels on the cap and perforations on the cape offer ventilation. A bungee toggle at the back lets you lock in the fit. The cape is attached with a hook and loop closure and can be removed when not in use. Body: 80% polyester 20% spandex. Front lining: 80% polyester 20% spandex. SKU: HJ7021 010